[Primary failure of eruption: combined vision between paediatric dentist and orthodontist].

In their daily practice, orthodontists and pedo- dontists have a common aim which is to ensure a functional establishment of the permanent denture. Due to the increase of eruption defects/failures with no clear obstacles, the doctor may encounter some difficulties to elaborate a diagnosis or even feels helpless when in need to define and put in motion a correct therapeutic strategy. The primary failure of eruption (PFE) is an extensively studied disease that has to be distinguished from an ankylosis during the diagnosis to improve the patient care. A thorough research of scientific literature has been achieved in order to keep our knowledge on the subject up to date and to develop the diagnosis further on primary failure of eruption. The exploitation of scientific data as well as the use of imagery and genetics, provided us with helpful elements for the primary failure of eruption diagnosis. It also allows the pedodontist and the orthodontist to avoid an unsatisfactory patient care who will be informed prior to the start of the treatment.